Process for preparing fluorocarboxylic acids

Details Process for preparing fluorocarboxylic acids Process for preparing fluorocarboxylic acids

2007-08-07

2007-08-07

Puttlitz, Karl (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C562S849000

Reexamination Certificate

active

11088370

ABSTRACT:
A fluorocarboxylic acid preparation process which includes hydrolyzing fluorocarboxylic acid fluoride in the presence of an aqueous sulfuric acid solution to form a reaction product containing a fluorocarboxylic acid and hydrogen fluoride (present as hydrofluoric acid); and removing at least some of the hydrogen fluoride from the reaction product by washing the reaction production with aqueous sulfuric acid solution. The hydrolyzing and washing are carried out at a temperature at which the fluorocarboxylic acid is a liquid.

REFERENCES:
patent: 3227736 (1966-01-01), Tschesche et al.
patent: 4400325 (1983-08-01), von Werner et al.
patent: 4927962 (1990-05-01), Aramaki et al.
patent: 5196579 (1993-03-01), Gries et al.
patent: 6013795 (2000-01-01), Manzara et al.
patent: 6248923 (2001-06-01), Lin et al.
patent: 2003/0171616 (2003-09-01), Watanabe et al.
patent: 42 13 641 (1993-10-01), None
patent: 0 510 596 (1992-10-01), None
patent: 06-009487 (1994-01-01), None
patent: 06-128189 (1994-05-01), None
patent: 08-231462 (1996-10-01), None
patent: WO 2004/031141 (2004-04-01), None
International Search Report dated May 11, 2004 for PCT/US2003/026306.
International Search Report dated Jul. 2, 2004 for PCT/US2003/028548.
Supplementary European Search Report for EP 03798701.3 dated Jul. 19, 2006.

Affiliated with

Also associated with

Rating

Process for preparing fluorocarboxylic acids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing fluorocarboxylic acids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing fluorocarboxylic acids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3874354